Configuring an HTTP Load Balancer on the DAS

You can create a load balancer configuration on the DAS using the Admin
Console or the asadmin command create-http-lb.
The following steps explain how you to do that. If you want more information
about the asadmin commands, see the man pages or the Reference Manual for create-http-lb, delete-http-lb, and list-http-lbs.

In the Admin Console, scroll down the left frame, click the HTTP Load
Balancers node and then in the HTTP Load balancers page on the right, click
New. In the New HTTP Load Balancer page, provide the following details of
the machine hosting the load balancer.

You can also create a load balancer configuration using the asadmin command create-http-lb-config. Table 5–1 describes the parameters. For
more information see the documentation for create-http-lb-config, delete-http-lb-config, and list-http-lb-configs.

Table 5–1 Load Balancer
Configuration Parameters

Parameter

Description

response timeout

Time in seconds
within which a server instance must return a response. If no response is received
within the time period, the server is considered unhealthy. The default is
60.

HTTPS routing

Whether HTTPS requests to the load balancer result in HTTPS or HTTP
requests to the server instance. For more information, see Configuring HTTPS Routing.

reload interval

Interval between
checks for changes to the load balancer configuration file loadbalancer.xml. When the check detects changes, the configuration file is reloaded.
A value of 0 disables reloading. For more information, see Enabling Dynamic Reconfiguration.

monitor

Whether monitoring is enabled for the load balancer.

routecookie

Name of the cookie
the load balancer plug-in uses to record the route information. The HTTP client
must support cookies. If your browser is set to ask before storing a cookie,
the name of the cookie is JROUTE.

target

Target for the load balancer configuration. If you
specify a target, it is the same as adding a reference to it. Targets can
be clusters or stand-alone instances.